![At Vancouver's cruise terminal](https://media.shermanstravel.com/cruises/thumb/xlarge/8798_c_vancouvercruiseterminal-jpg.jpg)
Photo: At Vancouver's cruise terminal / iStock / ablokhin
6. You can't change your mind.
With last-minute deals, rather than putting down a deposit and having months to pay off the balance, you will be required to pay the full fare at the time of booking — and it's completely nonrefundable. Be sure that this is the vacation you want to book, and then jump on it.